Results 31 to 40 of about 5,962 (118)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu +9 more
wiley +1 more source
Design and Implementation of the Performance Appraisal System of a Company [PDF]
, 2015 随着高科技时代的来临，各行业的技术水准越来越高，目前的行业竞争已经由原来的量化竞争转变为人力资源的角逐，但是人力资源的中心是人力资源的考核，怎样以绩效考核来运营好、管理好一个企业，尽可能的表现人力资源优点，提升工作效能，优化企业的资源优势，增强企业的整体竞争力，已变成人力资源管理中的焦点，越来越被企业所关注。 铁路作为国家交通大动脉，承载着经济发展和客货运输的双重意义，2013年原铁道部改革尘埃落定，新成立的铁路总公司也正在逐渐成为跨区域的大型企业，具有工作人员众多，分布系统广泛，业务活动复杂等特点 ...
汪永萍
core
MXene‐Based Materials: Compositional Engineering for High‐Performance Microwave Absorption
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials (MAMs), such as high absorption efficiency, lightweight, and environmental stability, making the development of advanced MAMs urgent for both civilian and national defense applications ...
Pan‐Pan Zhou +8 more
wiley +1 more source
Design and Implementation of Campus Information Management System for Primary and Secondary Schools in Guangxi [PDF]
, 2016 学校建筑物安全受到越来越多的关注，它直接影响到广大师生的生命安全，它关系 到全国民众的切身利益以及社会的和谐与稳定。建立广西中小学校舍信息管理系统，为 校舍安全工程的规划实施提供科学依据，有利于全面掌握广西中小学校舍安全信息，有 利于提升教育的科学管理水平，有利于促进教育事业科学发展。 本文以全区中小学校舍信息管理系统为例，根据广西各地区地质地貌特征、学校分 布情况及校舍鉴定情况，设计和建立一个在B/S模式架构下的信息管理系统。论文的 主要研究内容包括： 1、详细地论述了系统开发背景 ...
黄欣波
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Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 1, March 2026.ABSTRACT Hybrid crisis governance – combining hierarchical control with networked collaboration – has gained increasing attention in the public policy and crisis management literatures. Yet, the concept of hybridity remains crude and underdefined, limiting its analytical utility.
Svante Aasbjerg Thygesen +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT With the rapid development of the energy storage industry, aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention in the field of energy storage because of their inherent advantages, thereby emerging as a promising research direction with significant potential.
Lingjiao Fu +8 more
wiley +1 more source
A Research on the Improvement of Modification Operation Mode of M Nuclear Power Group [PDF]
, 2016 随着核电商运机组的逐渐增加，如何保障核电站安全、稳定、高效运行的问题日益得到各方关注与研究，而工程改造作为保障核电站安全、稳定、高效运行的重要手段，日益凸显其重要性。目前，该领域面临着整体业务运作效率低下、质量进度不可控、运作成本高等实际情况，导致较难满足现场需求，对机组安全稳定运行带来间接影响。本文通过鱼骨图对整体业务运作模式中存在的问题进行梳理与分析，得出了当前该业务运作模式中存在的群厂管理薄弱，环节、流程复杂，接口过多，供应商相对垄断等主要问题，旨在通过对业务中的流程、供应商、信息化等的改善和运用，
吴凌霄
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
wiley +1 more source
Research on Electronic Differential Control System of Wheel Drive Electric Vehicle [PDF]
, 2017 摘要 随着全球能源危机加深和日趋严峻的环境污染，传统汽车面临重重障碍，汽 车的发展不得不寻求新的方向。轮毂驱动电动汽车凭借其电能来源广泛、结构简 单、传动效率高及各驱动轮能独立控制等优点而备受关注。 然而，由于轮毂驱动电动汽车去掉了传统内燃机汽车具备的机械差速器，在 具备结构简单、更多控制自由度等优点的同时，随之也产生了汽车转向行驶时驱 动轮之间协调控制的问题―电子差速问题。因此，为保证整车操纵稳定性和安全 性，避免车辆在转向行驶时因车轮滑转或滑移导致整车失控，必须采用电子差速 ...
黄志兵
core
, 2019 移动学习得益于通讯技术发展,受到广泛应用。本研究从移动学习模式的特点出发,解释了其对口译学习的重要性。同时创新性地引入活动理论模型,阐释了其在移动学习中的发展,并考虑移动学习模型的各个动态维度及其联系,对英语口译移动学习的现状进行了剖析,指出了潜在问题,以期为口译移动学习系统的设计提供启示。中央高校基本科研业务费专项资金资助(项目编号 ...
芮菲
core +1 more source